The existing driver only supported IIO. This change adds support for
controlling the device via an I2C connection. In addition, there is a
new C++ example for it (l3gd20-i2c.cxx).
Note: Only basic functionality is supported, though a full register
map and access functions are available to fill in any desired
functionality.
Note, that some methods are only usable with specific connection
types. See the documentation.
Signed-off-by: Jon Trulson <jtrulson@ics.com>
